You haven't mentioned your Salesforce experience. If you are experienced in Salesforce, I recommend you enroll in a good Salesforce Certification from Intellipaat. And if you are a beginner, I suggest you Google out resources for Salesforce and watch the YouTube video on Salesforce for beginners for the role of Administrator. And once you feel your basics are covered, check out the Salesforce Masters Certification that will help you master the platform and make you job-ready. I am sharing here a video of a customer who enrolled in this course and has completed the course and upskilled his profile.